Trinity Moodle

• With two triple $'s embracing an expression you can make the filter to escape and the code itself is shown (with two embracing double $'s).
• Ex.: $$$$a^2$$$$ produces $$$a^2$$$, i.e. prevents the filter to render it as a formula gif.

• A valid expression inside the $'s is rendered as mathematics in an inserted gif image.
• Ex.: $$$x=y^2$$$ creates 

$$x=y^2$$

• Two double $'s embracing a valid math expression trigger the filter to generate and insert the formula gif.
• Ex.:  $$$a^2$$$ produces $$a^2$$
  

• Type arithmetic operations and "=" as usual.
• Exp.: $$$f(x)=x-2b+(3a/c)$$$ gives

$$f(x)=x-2b+(3a/c)$$

• See also keyword "fraction" for extended capabilities.

• Numbers in formulas are interpreted as constants and they are rendered in non-italic roman font face, which is a widely used convention.
• Following this convention, variables are shown in italic.
• Exp.: $$$f(x)=3a+x$$$ gives

$$f(x)=3a+x$$

• Syntax: \sqrt[n]{arg} or simply  \sqrt{arg} for \sqrt[2]{arg}
• Ex.: $$$\sqrt[3]{8}$$$ gives

$$\sqrt[3]{8}$$

• Ex.: $$$\sqrt{-1}$$$ gives

$$\sqrt{-1}$$

• Nesting of roots (and combining with fractions, ...etc.) are possible.
• Ex.: $$$\sqrt[n]{\frac{x^n-y^n}{1+u^{2n}}}$$$ gives

$$\sqrt[n]{\frac{x^n-y^n}{1+u^{2n}}}$$

• Ex.: $$$\sqrt[3]{-q+\sqrt{q^2+p^3}}$$$ gives

$$\sqrt[3]{-q+\sqrt{q^2+p^3}}$$

• Variables in formulas are rendered in italic roman font face, which is a widely used convention.
• Following this convention, constants are shown as non-italic.
• Exp.: $$$f(x)=3a+x$$$ gives

$$f(x)=3a+x$$

• Everthing following the \LARGE command will be output in the largest predefined font size until the system encounters another font size command.
• Note: This command is case sensitive, since large, Large and LARGE are different sizes! 
• Ex.: $$$\LARGE~3x$$$ gives $$\LARGE~3x$$

• Everthing following the \Large command will be output in the second largest font size until the system encounters another font size command.
• Note: This command is case sensitive, since large, Large and LARGE are different sizes! 
• Ex.: $$$\Large~3x$$$ gives $$\Large~3x$$